First, multiply both sides of the equation by #color(red)(12)# (the lowest common denominator of all the fractions) to eliminate the fractions while keeping the equation balanced:
#color(red)(12)(1/2x - 5/3) = color(red)(12)(-1/2 x + 19/4)#
#(color(red)(12) xx 1/2x) - (color(red)(12) xx 5/3) = (color(red)(12) xx -1/2x) + (color(red)(12) xx 19/4)#
#(6 xx 1x) - (4 xx 5) = (6 xx -1x) + (3 xx 19)#
#6x - 20 = -6x + 57#
Next, add #color(red)(6x)# and #color(blue)(20)# to each side of the equation to isolate the #x# term on the left side of the equation:
#6x - 20 + color(red)(6x) + color(blue)(20) = -6x + 57 + color(red)(6x) + color(blue)(20)#
#6x + color(red)(6x) - 20 + color(blue)(20) = -6x + color(red)(6x) + 57 + color(blue)(20)#
#12x - 0 = 0 + 77#
#12x = 77#
Now, divide each side by #color(red)(12)# to solve for #x# while keeping the equation balanced:
#(12x)/color(red)(12) = 77/color(red)(12)#
#(color(red)(cancel(color(black)(12)))x)/cancel(color(red)(12)) = 77/12#
#x = 77/12#
